(value: Tracer): <A, E, R>(effect: Effect<A, E, R>) => Effect<A, E, R>
<A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>Provides a tracer to an effect.
Example (Providing a tracer)
import { Effect } from "effect"
const program = Effect.gen(function*() {
yield* Effect.log("Using tracer")
return "completed"
})
// withTracer provides a tracer to the effect context
// const traced = Effect.withTracer(program, customTracer)export const const withTracer: {
(value: Tracer): <A, E, R>(
effect: Effect<A, E, R>
) => Effect<A, E, R>
<A, E, R>(
effect: Effect<A, E, R>,
value: Tracer
): Effect<A, E, R>
}
Provides a tracer to an effect.
Example (Providing a tracer)
import { Effect } from "effect"
const program = Effect.gen(function*() {
yield* Effect.log("Using tracer")
return "completed"
})
// withTracer provides a tracer to the effect context
// const traced = Effect.withTracer(program, customTracer)
withTracer: {
(value: Tracer(parameter) value: {
span: (this: Tracer, options: { readonly name: string; readonly parent: Option.Option<AnySpan>; readonly annotations: Context.Context<never>; readonly links: Array<SpanLink>; readonly startTime: bigint; readonly kind: SpanKind; readonly root: bo…;
context: (<X>(primitive: EffectPrimitive<X>, fiber: Fiber<any, any>) => X) | undefined;
}
function (type parameter) A in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>A, function (type parameter) E in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>E, function (type parameter) R in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>R>(effect: Effect<A, E, R>(parameter) effect: {
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>A, function (type parameter) E in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>E, function (type parameter) R in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>R>) => interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>A, function (type parameter) E in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>E, function (type parameter) R in <A, E, R>(effect: Effect<A, E, R>): Effect<A, E, R>R>
<function (type parameter) A in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>A, function (type parameter) E in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>E, function (type parameter) R in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>R>(effect: Effect<A, E, R>(parameter) effect: {
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>A, function (type parameter) E in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>E, function (type parameter) R in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>R>, value: Tracer(parameter) value: {
span: (this: Tracer, options: { readonly name: string; readonly parent: Option.Option<AnySpan>; readonly annotations: Context.Context<never>; readonly links: Array<SpanLink>; readonly startTime: bigint; readonly kind: SpanKind; readonly root: bo…;
context: (<X>(primitive: EffectPrimitive<X>, fiber: Fiber<any, any>) => X) | undefined;
}
interface Effect<out A, out E = never, out R = never>The Effect interface defines a value that lazily describes a workflow or
job. The workflow requires some context R, and may fail with an error of
type E, or succeed with a value of type A.
When to use
Use when you need to represent a lazy, composable workflow that can require
services, fail with a typed error, or succeed with a typed value.
Details
Effect values model resourceful interaction with the outside world,
including synchronous, asynchronous, concurrent, and parallel interaction.
They use a fiber-based concurrency model, with built-in support for
scheduling, fine-grained interruption, structured concurrency, and high
scalability.
To run an Effect value, you need a Runtime, which is a type that is
capable of executing Effect values.
Effect<function (type parameter) A in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>A, function (type parameter) E in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>E, function (type parameter) R in <A, E, R>(effect: Effect<A, E, R>, value: Tracer): Effect<A, E, R>R>
} = import internalinternal.const withTracer: {
(tracer: Tracer.Tracer): <A, E, R>(
effect: Effect.Effect<A, E, R>
) => Effect.Effect<A, E, R>
<A, E, R>(
effect: Effect.Effect<A, E, R>,
tracer: Tracer.Tracer
): Effect.Effect<A, E, R>
}